/*
 * DefaultPatternTexture.java 04 mars 2013
 *
 * Sweet Home 3D, Copyright (c) 2006-2013 Emmanuel PUYBARET / eTeks <info@eteks.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package com.eteks.sweethome3d.io;

import java.io.IOException;
import java.io.ObjectInputStream;

import com.eteks.sweethome3d.model.Content;
import com.eteks.sweethome3d.model.TextureImage;
import com.eteks.sweethome3d.tools.ResourceURLContent;

/**
 * A pattern built from resources.
 * @since 3.3
 */
class DefaultPatternTexture implements TextureImage
{
	private static final long serialVersionUID = 1L;
	
	private final String name;
	private transient Content image;
	
	public DefaultPatternTexture(String name)
	{
		this.name = name;
		this.image = new ResourceURLContent(DefaultPatternTexture.class, "resources/patterns/" + this.name + ".png");
	}
	
	/**
	 * Initializes transient fields and reads pattern from <code>in</code> stream with default reading method.
	 */
	private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
	{
		in.defaultReadObject();
		try
		{
			this.image = new ResourceURLContent(DefaultPatternTexture.class,
					"resources/patterns/" + this.name + ".png");
		}
		catch (IllegalArgumentException ex)
		{
			this.image = new ResourceURLContent(DefaultPatternTexture.class, "resources/patterns/foreground.png");
		}
	}
	
	public String getName()
	{
		return this.name;
	}
	
	public Content getImage()
	{
		return this.image;
	}
	
	public float getWidth()
	{
		return 10;
	}
	
	public float getHeight()
	{
		return 10;
	}
	
	/**
	 * Returns <code>true</code> if the object in parameter is equal to this pattern.
	 */
	@Override
	public boolean equals(Object obj)
	{
		if (obj == this)
		{
			return true;
		}
		else if (obj instanceof DefaultPatternTexture)
		{
			DefaultPatternTexture pattern = (DefaultPatternTexture) obj;
			return pattern.name.equals(this.name);
		}
		else
		{
			return false;
		}
	}
	
	/**
	 * Returns a hash code for this pattern.
	 */
	@Override
	public int hashCode()
	{
		return this.name.hashCode();
	}
}
